CN209775489U

CN209775489U - Extrusion foaming mould of multilayer core

Info

Publication number: CN209775489U
Application number: CN201920088638.3U
Authority: CN
Inventors: 赵国栋; 郭乔; 潘治梁
Original assignee: Guangzhou City Yin Source New Mstar Technology Ltd
Current assignee: Guangzhou City Yin Source New Mstar Technology Ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2019-12-13
Anticipated expiration: 2029-01-18

Abstract

An extrusion foaming mould of a multi-layer mold core comprises a mould body, a transition plate, a support frame, a mouth mold plate, a lip mold plate, a first layer mold core, a second layer mold core, a third layer mold core, a first cooling inlet pipe, a first cooling branch pipe, a second cooling inlet pipe and a second cooling branch pipe; the die body, the transition plate, the support frame, the mouth template and the lip template are sequentially connected from left to right; the die orifice template and the lip template are internally provided with main cavities which are communicated with each other; the first layer of mold core, the second layer of mold core and the third layer of mold core sequentially penetrate through a main flow channel of the support frame, a mouth mold plate and a main mold cavity of the lip mold plate; the first cooling inlet pipe penetrates through the support frame, and the discharge end of the first cooling inlet pipe is arranged on the first-layer mold core; the first cooling inlet pipes are respectively connected with the two groups of first cooling branch pipes; the second cooling inlet pipe penetrates through the lip template, and the discharge end of the second cooling inlet pipe is connected with the feed end of the second cooling branch pipe. The utility model has the advantages of the pressure of material improves, and closely knit degree improves, and the cooling is effectual in the working process.

Description

Extrusion foaming mould of multilayer core

Technical Field

The utility model relates to an extrude the foaming mold utensil field, especially relate to an extrude foaming mold utensil of multilayer core.

Background

the extrusion foaming mold is mostly used for the production of products such as films, pipes, plates, profiles, packaging materials and the like, the structure of the mold directly affects the quality of the products, and when the mold is designed and manufactured, enough pressure is often required to be established inside the mold to prevent plastic melt from foaming in a mold cavity, so that the products generate uneven cell structures and rough surfaces, and even can not be molded normally. The existing mold is mostly a single-layer mold core, single-layer pressure is provided, the product is extruded aiming at higher compactness and lighter weight, the requirement of production cannot be met, the pressure is insufficient, the generated foaming space is difficult to realize, the product is caused to have holes, and the quality of the product is seriously influenced. And the cooling effect of the existing mould is poor, and the molding effect of the marble-imitated decorative lines cannot be ensured. In order to solve the problems, the application provides an extrusion foaming mold with a multi-layer mold core.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides an extrusion foaming mould of multilayer core, the pressure of material improves, and closely knit degree improves, and it is effectual to cool down in the working process.

(II) technical scheme

In order to solve the problems, the utility model provides an extrusion foaming mould of a multilayer core, which comprises a mould body, a transition plate, a support frame, a mouth template, a lip template, a first layer core, a second layer core, a third layer core, a first cooling inlet pipe, a first cooling branch pipe, a second cooling inlet pipe and a second cooling branch pipe; the die body, the transition plate, the support frame, the mouth template and the lip template are sequentially connected from left to right; the die body, the transition plate and the support frame are all provided with main flow channels and are communicated with each other; the mouth template and the lip template are internally provided with main cavities which are communicated with each other; the main runner is communicated with the main cavity; the first layer of mold core, the second layer of mold core and the third layer of mold core sequentially penetrate through a main flow channel of the support frame, a mouth mold plate and a main mold cavity of the lip mold plate; the first layer of mold core and the third layer of mold core are of broken line type structures; the second layer of mold core is of a linear structure; the second layer of core is positioned between the first layer of core and the third layer of core;

The first cooling inlet pipe penetrates through the support frame, and the discharge end of the first cooling inlet pipe is arranged on the first-layer mold core; the first cooling inlet pipes are respectively connected with the two groups of first cooling branch pipes; the first cooling branch pipe is of an L-shaped structure; the discharge ends of the vertical parts of the first cooling branch pipes are respectively arranged on the second-layer mold core and the third-layer mold core;

A second cooling inlet pipe penetrates through the lip template, and the discharge end of the second cooling inlet pipe is connected with the feed end of a second cooling branch pipe; the second cooling branch pipe is positioned in the main cavity of the lip template; the second cooling branch pipes are bent and are respectively connected to the inner wall of the main cavity.

Preferably, the first layer core and the third layer core are arranged at one end of the support frame and are in a conical shape.

Preferably, the first layer core, the second layer core and the third layer core form a pressure area with the support frame.

Preferably, the first cooling inlet pipe is a cooling air blowing pipeline, and the second cooling inlet pipe is a cooling water pipeline.

The above technical scheme of the utility model has following profitable technological effect: during the use, the material gets into from the die body, and the flow passes cab apron, support frame, from first layer core, second floor core and third layer core reposition of redundant personnel, extrusion, and the pressure of material improves, and closely knit degree improves to provide sufficient foaming space, advance the pipe through being equipped with the second cooling in the lip template, make cooling medium advance the pipe from the second cooling and get into the mixed type intracavity, thereby cool off mixed type intracavity extrusion's mould outer wall, and be equipped with first cooling in the support frame and advance the pipe, make cooling medium advance the pipe from the first cooling and get into inside first layer core, second floor core and the third layer core, realize cooling the inner wall of grinding apparatus through the cooling to first layer core, second floor core and third layer core, accelerate the cooling shaping efficiency of grinding apparatus, guarantee the accurate design of mould and extrude.

Drawings

Fig. 1 is a schematic structural diagram of an extrusion foaming mold with a multilayer core according to the present invention.

Reference numerals: 1. a mold body; 2. a transition plate; 3. a support frame; 4. a mouth template; 5. a lip template; 6. a main flow channel; 7. a first layer of cores; 8. a second layer of cores; 9. a third layer of mold cores; 10. a main cavity; 11. a first cooling inlet pipe; 12. a second cooling inlet pipe; 13. a first cooling branch pipe; 14. a second cooling manifold.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, the utility model provides an extrusion foaming mold of multilayer core, including die body 1, transition plate 2, support frame 3, mouth template 4, lip template 5, first layer core 7, second layer core 8, third layer core 9, first cooling inlet pipe 11, first cooling branch 13, second cooling inlet pipe 12 and second cooling branch 14; the die body 1, the transition plate 2, the support frame 3, the mouth template 4 and the lip template 5 are sequentially connected from left to right; the die body 1, the transition plate 2 and the support frame 3 are all provided with a main runner 6 and are communicated with each other; the mouth template 4 and the lip template 5 are both internally provided with a main cavity 10 which are communicated with each other; the main runner 6 is communicated with the main cavity 10; the first layer of core 7, the second layer of core 8 and the third layer of core 9 sequentially pass through the main runner 6 of the support frame 3, the mouth template 4 and the main cavity 10 of the lip template 5; the first layer core 7 and the third layer core 9 are of a broken line type structure; the second layer of mold core 8 is of a linear structure; the second layer core 8 is positioned between the first layer core 7 and the third layer core 9;

The first cooling inlet pipe 11 penetrates through the support frame 3, and the discharge end of the first cooling inlet pipe 11 is arranged on the first-layer mold core 7; the first cooling inlet pipe 11 is respectively connected with two groups of first cooling branch pipes 13; and the first cooling branch pipe 13 is of an L-shaped structure; the discharge ends of the vertical parts of the first cooling branch pipes 13 are respectively arranged on the second-layer mold core 8 and the third-layer mold core 9;

A second cooling inlet pipe 12 penetrates through the lip template 5, and the discharge end of the second cooling inlet pipe 12 is connected with the feed end of a second cooling branch pipe 14; and the second cooling branch 14 is positioned in the main cavity 10 of the lip template 5; the second cooling branch pipes 14 are curved and are connected to the inner walls of the main cavity 10, respectively.

in the utility model, when in use, the material enters from the die body 1, flows through the transition plate 2 and the support frame 3, is shunted and extruded from the first layer core 7, the second layer core 8 and the third layer core 9, the pressure of the material is improved, the compactness is improved, thereby providing enough foaming space, the cooling medium enters into the mixed cavity 8 from the second cooling inlet pipe 12 by arranging the second cooling inlet pipe 12 in the lip die plate 5, thereby cooling the outer wall of the extrusion molding die in the mixed cavity 8, the first cooling inlet pipe 11 is arranged in the support frame 3, the cooling medium enters into the first layer core 7, the second layer core 8 and the third layer core 9 from the first cooling inlet pipe 11, the cooling of the inner wall of the grinding tool is realized by cooling the first layer core 7, the second layer core 8 and the third layer core 9, and the cooling molding efficiency of the grinding tool is accelerated, the accurate shaping extrusion of the die is ensured.

In an alternative embodiment, the first layer of cores 7 and the third layer of cores 9 are tapered at one end of the support frame 3 to facilitate the diversion of the incoming material.

In an alternative embodiment, pressure areas are formed between the first layer core 7, the second layer core 8 and the third layer core 9 and the support frame 3, so that distribution of multi-layer pressure is realized, and the compactness of the product is effectively improved.

In an alternative embodiment, the first cooling inlet pipe 11 is a cooling blowing pipe, and the second cooling inlet pipe 12 is a cooling water pipe.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The extrusion foaming mold of the multilayer mold core is characterized by comprising a mold body (1), a transition plate (2), a support frame (3), a mouth mold plate (4), a lip mold plate (5), a first layer mold core (7), a second layer mold core (8), a third layer mold core (9), a first cooling inlet pipe (11), a first cooling branch pipe (13), a second cooling inlet pipe (12) and a second cooling branch pipe (14); the die body (1), the transition plate (2), the support frame (3), the mouth template (4) and the lip template (5) are sequentially connected from left to right; the die body (1), the transition plate (2) and the support frame (3) are all provided with a main runner (6) and are communicated with each other; the mouth template (4) and the lip template (5) are internally provided with main cavities (10) which are communicated with each other; the main runner (6) is communicated with the main cavity (10); the first layer of mold core (7), the second layer of mold core (8) and the third layer of mold core (9) sequentially penetrate through a main flow passage (6) of the support frame (3), the mouth mold plate (4) and a main mold cavity (10) of the lip mold plate (5); the first layer of mold core (7) and the third layer of mold core (9) are of a broken line type structure; the second layer of mold core (8) is of a linear structure; the second layer of core (8) is positioned between the first layer of core (7) and the third layer of core (9);

The first cooling inlet pipe (11) penetrates through the support frame (3), and the discharge end of the first cooling inlet pipe (11) is arranged on the first-layer mold core (7); the first cooling inlet pipes (11) are respectively connected with the two groups of first cooling branch pipes (13); the first cooling branch pipe (13) is of an L-shaped structure; the discharge ends of the vertical parts of the first cooling branch pipes (13) are respectively arranged on the second-layer mold core (8) and the third-layer mold core (9);

A second cooling inlet pipe (12) penetrates through the lip template (5), and the discharge end of the second cooling inlet pipe (12) is connected with the feed end of a second cooling branch pipe (14); and the second cooling branch pipe (14) is positioned in the main cavity (10) of the lip template (5); the second cooling branch pipes (14) are bent and are respectively connected to the inner wall of the main cavity (10).

2. a multi-layer core extrusion foaming die as claimed in claim 1, wherein the first layer core (7) and the third layer core (9) are tapered at one end of the support frame (3).

3. A multi-layer core extrusion foaming die according to claim 1, wherein pressure zones are formed between the first layer core (7), the second layer core (8) and the third layer core (9) and the supporting frame (3).

4. the extrusion foaming die of a multilayer core as claimed in claim 1, wherein the first cooling inlet pipe (11) is a cooling blowing pipe and the second cooling inlet pipe (12) is a cooling water pipe.